http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3604 Tunnel Network Time Limit: 2 Seconds      Memory Limit: 65536 KB Country Far-Far-Away is a big country with N cities. But it is now under a civil war. The rebel uses the ancient tunnel…

题目链接: E - Tunnel Network ZOJ - 3604 题目大意: 给定编号1-n的点,和给定编号1-S 的联通图,刚开始1号联通图只有 1个顶点,就是编号为1的顶点,2号联通图也只有1个顶点,编号为2的顶点,同理 3,4,5知道s: 剩下的顶点还有 s+1,s+2,s+3,….到n: 这些点你可以随机分配,以连边的方式加入到S个联通图里, 现在问...最后由N个点构成的森林..种类,方案数有多少? 凯莱定理讲解:http://www.cnblogs.com/zhj5chengf…

转自:http://w1.fi/gitweb/gitweb.cgi?p=hostap.git;a=blob_plain;f=wpa_supplicant/wpa_supplicant.conf ##### Example wpa_supplicant configuration file ############################### # # This file describes configuration file format and lists all available…

The players This document describes the architecture that results from a particular OpenStack configuration, specifically: Quantum (or Neutron) networking using GRE tunnels; A dedicated network controller; A single instance running on a compute host…

wpa_supplicant软件架构分析 1. 启动命令 wpa supplicant 在启动时,启动命令可以带有很多参数,目前我们的启动命令如下: wpa_supplicant /system/bin/wpa_supplicant -Dwext -ieth0 -c/data/wifi/wpa_supplicant.conf -f/data/wifi/wpa_log.txt wpa_supplicant对于启动命令带的参数,用了两个数据结构来保存, 一个是 wpa_params, 另一个是wpa…

摘要:精选TED. 每个音频不超过2分钟,学英语和吸收伟大思想两不误 音频: https://n1audio.hjfile.cn/st/fb5ace6f-7b63-439d-954c-c4539c1f6577.mp3  原文: 00:12 Chris Anderson: Elon, hey, welcome back to TED. It's great to have you here. 00:16 Elon Musk: Thanks for having me. 00:18 CA: So,…

摘要:精选TED. 每个音频不超过2分钟,学英语和吸收伟大思想两不误 音频: https://n1audio.hjfile.cn/st/de745862-d5f4-4ef4-9218-d79361ca8512.mp3  原文: 01:17EM: Yeah, absolutely. So this is the first time -- Just to show what we're talking about. So a couple of key things that are import…

知识点一:linux网桥提供安全组 知识点二:每新建一个网络,在网络节点都会新建一个namespace,只要为该网络建立子网,那么该namespace里就新增dhcp来为该子网分配ip,也可以为该网络新建路由 dhcp由neutron-dhcp-agent负责,router由neutron-l3-agent负责 知识点三: compute节点:vm->(access口)br-int--->br-tun(将vlan id转Tunnel ID)--->GRE tunnel network节点…

The 9th Zhejiang Provincial Collegiate Programming Contest A    Taxi Fare    25.57% (166/649)     (水题)    计算两种计程车计费方式的差值, 注意四舍五入    B    Unrequited Love    14.00% (7/50)    水题) C    Count the Trees    9.87% (8/81)   (二叉树)    卡特兰数应用的问题     D    Draw S…

Initial environment configuration Copy the contents of the /opt/openstack-ansible/etc/openstack_deploy directory to the/etc/openstack_deploy directory. Change to the /etc/openstack_deploy directory. Copy the openstack_user_config.yml.example file to/…